Yuito Sumeragi: Phase 3,4 and 5

In Kunad Highway, proceed through the linear path, defeating Others including fire-wielding enemies and flyers.

Use a special object attack on a bus to ride it down a slope, running over enemies.

Continue, defeating armored enemies that spit oil. It is advised to deal with them before or after fire-spewing Others.

Reach a save point.

Continue up the slope and defeat a group of enemies including the Yawn. Use nearby trucks with special object attacks to create oil explosions that damage enemies.

Proceed to the Junction and use buses to run over enemies. Killing 5 enemies with one bus awards a trophy.

Ride a bus west downhill. You will be boxed in and must fight armored enemies and a Yawn. Prioritize breaking the armor of the armored enemies, then lure the Yawn to an oil truck to detonate it.

Advance to the next save point and area.

In the Parking Area, scenes will play, followed by an unwinnable boss fight against Karen. Focus on dodging as Karen is impossible to hit. Eventually, Karen will use Brain Field, defeating you and progressing the scenes.

After the fight, you will be alone. Follow the path to regroup with allies.

Along the way, you will be attacked by Seiran NDF soldiers; defeat them with Psychokinesis (PK) attacks.

Continue until you reach and can interact with Nagi.

Engage in a boss fight against Kasane, with Kasane as an ally. Kasane uses water spray and rain attacks. Her weak spot is her hind legs. To defeat her quickly, lure her near an oil truck to cause an explosion, knocking her down and inflicting burn. Immediately use the Psychokinesis (SAS) ability and PK Field for significant damage. Keep distance while hitting her hind legs with PK attacks and occasional melee. Use PK Field again when an opening appears to finish the fight.

After the boss fight and scenes, Standby begins.

Speak to Hanabi for a Bonding episode. Increasing her Bond level improves SAS recovery speed and unlocks Combo Vision.

The shop is updated. It is highly recommended to give everyone new gifts. This may unlock Tsugumi to Rank 2. If not, battle using her SAS or give her presents. Her Rank 2 skill allows for instant armor breaking after a perfect dodge using a read attack.

You cannot travel to Suou. Go to Musubi to pick up a quest.

Interact with the table in the hideout to move to Phase 4.

In Suou, move through the city, defeating the group of Others near the entrance, after which a scene will occur.

Continue through the city, defeating Others on your way to headquarters. Beware of armored enemies and a new air enemy that spreads fog.

Encounter a new Yawner type that spews fire. Use Gemma's SAS, approach its mouth when it opens to breathe fire, and attack with melee and PK. Repeat until downed, then attack its mouth.

Continue advancing, dealing with Others and Seiran NDF.

Upon reaching headquarters, a save point is present; SAVE NOW.

Enter headquarters for a boss fight against Kasane. This fight is unwinnable; avoid her attacks and counter when possible until scenes play.

You will be prompted to activate Brain Field. Fight with Brain Field briefly as a test run. When the timer reaches 0, end the battle.

Brain Field can be disorienting. It is not recommended to use it until its tree in the Brain Map is filled out to make it more viable, unless in a dire situation.

Phase 4 Standby begins. The final section of the Brain Map, for Brain Field, will open.

The shop is updated with new plug-ins.

There are several bonding episodes: two via Brain Mail with Shiden and Kyoka, and two more with Gemma and Tsugumi.

Give new gifts to any characters.