Kurohyō 2: starting the substories, Chapters 1–3
The side stories have their own chains running through both cities. This first part covers their early steps and the save problems to know about before committing to a completion run. Substory events and rewards are discussed below.
start with the save warning
Do not equate beating Chaos, finishing the main narrative side-story chains, and filling every line of the in-game substory journal. They are different targets. The journal also records progress from cats, hostesses, collectible cards, rankings and fighter assignments. Check your actual entries under Pause > Story > Square rather than relying only on question marks: some events lack a marker. A movement-speed partner is useful for pursuit and delivery objectives.
Practical save policy: keep separate saves before food-completion triggers, before the ending, before entering Premium Adventure, and before starting Premium New Game. This is precautionary advice, not a claim that quests expire each chapter.
**満腹王・ハングリー**, the Hungry/Full King event, is not safe to treat as ordinary cleanup. Darage reports that receiving its association email can prevent the event from appearing on subsequent playthroughs, even if it was never completed. It also reports **名コンビ結成？④** disappearing after transition to Premium Adventure. Its proposed workaround is to avoid triggering Hungry on the first playthrough and do the completion run in Premium New Game, but the author explicitly labels that proposal untested. There is no verified universal fix in these references.
The Chapter 5 wiki separately warns against opening the food-association mail during a chase/escape event. A 2012 commenter reports that Hungry can remain unavailable on later cycles without blocking Chaos; this is a community report, not a verified patch note or an official Sega statement.
A modern player's completion report also describes restarting after journal entries disappeared on a new cycle. That strengthens the case for backup saves but does not establish which version, patch or emulator configuration reproduces every bug.
Chapter 1: the first two errands
**Convenience-store manners: マナーは大切に・コンビニ編.** After the opening Ashura encounter, speak to the loiterers outside Tenkaichi Street's Poppo and defeat them. Collect the manners badge, Tauriner++ and 200 completion XP.
**The telephone-pole graffiti: 電柱の落書き.** Speak to the office workers near Suppon Street, inspect the pole and make the call. Investigate the women around Theater Square, win the ensuing fight, then return to the workers; the final return is required. Rewards include Tauriner+ and 200 XP.
Chapter 2: start the long-running stories
**Restaurant manners: マナーは大切に・九州一番星編.** After Convenience-store manners, enter Kyushu No.1 Star. Choose to stop the older man and complete the ramen job; rewards include ¥10,000 and Hyper Poultice.
**The woman from Osaka: 大阪から来た女.** On Nakamichi Street after the gym events, help the woman in riding gear. Beat her attackers, escort her to Nakamichi Club Sega and then Don Quijote; receive the Kamurocho mascot strap.
Helpful Links: [Substory reference](https://dswiipspwikips3.jp/kurohyo2/substory.html), [Historical save-bug report](https://darage.com/enjoygame/ryukuro2/story12.html), [Chapter 五 maps and requirements](https://kouryakutsushin.com/kurohyo2wiki/サブストーリー第五章), [Player completion report](https://www.reddit.com/r/yakuzagames/comments/1cu7a0b/i_got_platinum_and_full_collection_in_kurohyou_2/), [Chapter 一 maps and requirements](https://kouryakutsushin.com/kurohyo2wiki/サブストーリー第一章), [Chapter 二 maps and requirements](https://kouryakutsushin.com/kurohyo2wiki/サブストーリー第二章), [Chapter 2 walkthrough](https://dswiipspwikips3.jp/kurohyo2/substory02.html), [Chapter 三 maps and requirements](https://kouryakutsushin.com/kurohyo2wiki/サブストーリー第三章), [Chapter 3 walkthrough](https://dswiipspwikips3.jp/kurohyo2/substory03.html).
**Kamurocho's thief: 神室町の盗賊.** After Osaka, accept the old man's trunk on Nakamichi Back Alley. Fight, meet him at Shichifuku Park, then win the reinforcement battle; receive the carved panda and blackjack charm.
**Rich boy's hobby, part 1: 金持ち息子の道楽・その1.** After Osaka, meet him outside Theater Square's Club Sega. Catch a dog there and a chick at Nakamichi's arcade, follow his Taihei Street request, ask arcade staff about the nonexistent golden chick, then return to Theater Square and fight. Total quest payments: ¥60,000.
**Signs of trouble: 混沌の兆し.** After Osaka and the Kuki office story visit, intervene in the Hotel District attack. Win and finish Akagi's conversation.
**DIS falls: DIS壊滅.** After Signs of trouble, meet Shiraishi on Park Boulevard. Fight in Champion District, pursue the fugitives and defeat Koshi.
**School-festival act: 文化祭の出し物.** After Osaka and the gym-president conversation, speak to the campaign girl on Taihei East to enable jobs. Work at Smile Burger, accept the student's request and perform a flawless Burger Catch round; receive the school photo and Toughness ZZ.
**Country Road: カントリー・ロード.** After returning home before Dragon Heat, approach the country visitor on Tenkaichi Street. Beat the Poppo touts, agree to help find Rumi, find Murata on Senryo Street, then confront Rumi's trouble on Pink Alley. Reward: the popularity bracelet.
Chapter 3: follow Yumiko into Sotenbori
**Rich boy's hobby, part 2: 金持ち息子の道楽・その2.** After part 1, approach the group on Senryo Street. Beat Kiyoshi, then resolve the follow-up fight outside Kanrai for a Gold Plate.
**Manners finale: マナーは大切に・決着編.** After the restaurant episode, speak to the troublesome man near Kamurocho Hills, then at Children's Park. Visit SHINE and win the confrontation; receive ¥30,000 and a full health restoration.
**Reunion with Yumiko: 由美子との再会.** After Osaka and separating from Takamasa, approach east Shofukucho Central Street. Join Yumiko's takoyaki outing and defeat the three attackers.
**Sotenbori's two leaders: 蒼天堀の2トップ・陸奥と空也.** After Reunion, meet Yumiko on the western river walkway and defeat Mutsu. If police block access, advance the main story and return.
**Kuya attacks: 空也・襲撃.** After Two leaders, approach Bishamon Bridge. Beat the Lovers, chase Kuya and win his fight.
**The suggestive messages: エッチなメール.** After Reunion, visit Bishamon Bridge, western Shofukucho Street and Hogenji Alley. Pay the successive in-game message fees of ¥1,000, ¥3,000 and ¥10,000, then win the confrontation; the quest pays ¥30,000. One wiki paragraph names a conflicting prerequisite, so revisit after Chapter 4's clothing tout if it does not trigger.
**Drug trial: red powder: 新薬のアルバイト 怪しい赤い粉末編.** After Reunion, accept Dr. Kotake's experiment on western Shofukucho Street. Win while affected by the drug; receive ¥10,000 and unlock Ultra Red at the vendor.
**Meet King Panther: キングパンサー・遭遇.** After the messages, accept the leopard-print woman's request on west Sotenbori Street. Ask the eastern flyer distributor and the schoolgirl at Iwao Bridge, take the supermarket flyer back, deliver another to the western river walkway, then report back. Rewards include the leopard shirt, sweets and frozen mandarin.
Kurohyō 2: starting the substories, Chapters 1–3
· Games/Kurohyo 2: Ryu ga Gotoku Ashura-hen