Here is the full list of all 12 Sentimental Trickster: Yaoi BL Gay Visual Novel achievements.
Unlocked Jin's good ending
Start Jin's route
Unlocked Kanae's good ending
Happy birthday, Haru!
Start Kanae's route
Unlocked Shinya's good ending
Start Shinya's route
Unlocked Soichiro's good ending
Repaired your relationship with your mother
Overcame the past and moved on to the present
Start Soichiro's route
Begin Haru's story