Second time running Burnt Offerings.
Feel Tsuto Kaijitsu tends to be a walk in the park for most parties. I also felt that his being a monk was a strange choice, since the player guide says there are no monastic colleges anywhere nearby. I guess he could have been sent away to one because he was a half elf and this greatly embarrassed his father.
I felt it might be more logical or at least offer more of a challenge if he was a rogue/alchemist. Anyhow, here is Tsuto as a rogue alchemist if this interests you.
male Neutral Evil Alchemist/Rogue, Level 2/1, Init 5, HP 20/20, Speed 30
AC 22, Touch 15, Flat-footed 17, CMD 17, Fort 4, Ref 10, Will -2, CMB +2, Base Attack Bonus +2
Dagger/Dagger +5/+5 (1d4/1d4, 19-20)
Entangles dc 14. Bomb (Tanglefoot bomb) (6) +7 (touch) (1d6+4, 5pts splash, 20)
Alchemist's fire (6) +7 (1d6, 20)
Mstr Studded Leather, Shield spell (+3 Armor, +4 Shield, +5 Dex)
Abilities Str 10, Dex 20, Con 12, Int 18, Wis 6, Cha 10