Here is the full list of all 36 XOXO Droplets achievements.
Started your first file
Talked to all six guys during the first group meeting
Sat with a guy during lunch
Went on a very educational field trip
Got one of the pajama events
Had the first meeting of the second year
Went to senior prom
Became prom queen
Made it all the way to the end of the game
Wore an optional accessory
Got a right to date conversation with a main guy
Went on a tunnel of love date
Got a side conversation with Alicia, Missy, or Nurse Lynn
Got a side conversation with Cala, Romeo, Trent, Kam, or Adrian
Watched a part-time job event
Became friends with Alicia
Became friends with Missy
Became friends with Nurse Lynn
Became friends with Cala
Became friends with Romeo
Became friends with Trent
Convinced one of the main guys to be your official boyfriend
Befriended a main guy, Kam, or Adrian and ended the game without him as your boyfriend
Got a congrats letter from a part-time job manager at the end of the game
Had max Reputation with a Clique at the end of the game
Ended the game being just friends with all six main guys
Ended the game with Everett as your boyfriend
Ended the game with Nate as your boyfriend
Ended the game with Shiloh as your boyfriend
Ended the game with Bae as your boyfriend
Ended the game with Jeremy as your boyfriend
Ended the game with Pran as your boyfriend
Ended the game with Kam as your boyfriend
Ended the game with Adrian as your boyfriend
Made it to the end of the game with the Guy List filled
Ended the game with Lucas as your boyfriend