This chapter is heavy on story, backtracking to Onomichi, a surprise boss fight, and an investigation that leads to a series of high-stakes battles.
Part 1: Kamurocho and Return to Onomichi
New Serena & Rooftop: The chapter begins with a cutscene at New Serena following the events of Chapter 11. Exit through the back door and climb to the roof for more plot progression.
Travel to Onomichi: When the cutscenes conclude and you regain control, your objective is to take a taxi to Onomichi. Before you do, this is your last chance to explore Kamurocho for a while, so restock your supplies if needed.
Onomichi Arrival & First Fight: After arriving in Onomichi, you'll be immediately drawn into a fight on the street.
The Fight: This is a standard crowd fight with a few tough minions, including a named mini-boss named Ito. Focus on your allies' help to quickly thin the crowd using crowd control tactics (grabs, throws, and sweep attacks).
Hirose Family Office: Once the area is clear, you are free to move. Head to the Hirose Family Office (pink dot). A major cutscene will play, and the time will advance to night.
Part 2: Surprise Boss Fight
Immediate Boss Fight: After the lengthy night cutscene at the office, you'll be thrust into an unexpected boss fight.
🥊 Boss Fight 1: Toru Hirose
This fight takes place in a narrow alley, which severely limits your mobility and ability to find weapons.
Strategy: Hirose is a fast and powerful brawler, and his wide sweeps make dodging difficult in the confined space.
Prioritize Extreme Heat: Since mobility is restricted, your best bet is to rely on Extreme Heat Mode for reliable, high-damage combos. Drink an energy drink or alcohol to top off your Heat Orbs and use the Heat Rush combo to deal significant damage.
Throw/Body Slam: When you aren't in Extreme Heat, look for opportunities to grab him. Since you're in an alley, you might be able to body slam him through a nearby obstacle like a moped for a Heat Action, but the window is small.
Defense: Block if you can't get out of the way, but focus on the quick Square/X combos to interrupt him whenever there's an opening.
Part 3: The Nine Poem Stones
The Code: After the fight and subsequent cutscenes, you are tasked with investigating nine "Poem Stones" scattered throughout Onomichi Jingaicho to decode a secret.
Investigation: The Poem Stones appear on your mini-map as blue triangles, and a blue interaction triangle will appear when you are close. You must examine each stone (by taking a photo with your phone) in any order.
| Stone | Location | Notes |
| #1 | Shishido Street | Located just east of the Oyster Shack, near a safe. It is the only stone south of the National Route road. |
| #2 | Central Street | Located in the center of town, near a major intersection. |
| #3 | West Shishido Street | Found in an alleyway slightly north of Shishido Street. |
| #4 | Jizo Statue | Located near the Jizo Statue in the northwest part of the main town. |
| #5 & #6 | Ropeway Station | Found along the mountain path leading up to the Ropeway and Temple area. |
| #7 | Senkoji Temple | Head up the stairs past the Ropeway to the Temple grounds. Located near a guy at the end of the path, blocked by some benches. |
| #8 & #9 | Northern Temple Path | Located along the winding paths in the northern mountainous area, possibly near the Cemetery. |
The Graveyard: Once you have pictures of all nine stones, return to the Hirose Family Office for another cutscene. You will then be directed to the graveyard in northern Onomichi. Examine the large, solitary gravestone for the next plot sequence.
Part 4: Final Assault on the Shipyard
Docks: The plot will direct you to the docks in the southern part of Onomichi. Follow the pink marker and take the boat to the shipyard.
Shipyard Brawls: You will now face a series of crowd fights, often with your allies assisting you.
Wave 1 (Minions): A large group of standard minions. Use throws to maintain crowd control.
Wave 2 (Catwalk): A dozen minions on a catwalk. Use sweeping attacks and throws.
Wave 3 (Open Deck): Another dozen minions, some armed. Use standard tactics.
Wave 4 (Elevator/Mini-Bosses): After an elevator ride, you'll face a wave with two persistent mini-bosses, Umeda and Inagaki. Use Extreme Heat now if you have orbs to spare to quickly eliminate the threat and save your higher-quality items for the final boss.
Final Boss Fight: After clearing all the brawls, you will finally face the chapter's main boss.
🥋 Boss Fight 2: Kaname Daimon
This is the final confrontation that concludes the chapter. Daimon is a large, powerful opponent who hits hard.
Strategy: Daimon is another heavy-hitting tank enemy who relies on brute force.
Evasion: His attacks are slow but hit like a truck. Quickstep dodging to the side or behind him is essential.
Heat Rush: Use your best Extreme Heat Mode combo immediately. Since he is a large target, it's easier to land the full sequence of attacks.
Heat Actions: Look for opportunities to hit him with an environmental object or a grapple-based Heat Action to deal significant damage.
Sustain: Keep your health high and focus on short, punishing combos after a successful dodge.
Defeating Daimon triggers the final cutscenes of the chapter.