Here is the full list of all 24 Sumire achievements.
Finish the game with the most minimal number of Fast Travels.
Get all of the achievements.
Complete tasks for all creatures and people.
Finish the day without helping any people.
Finish the day with super low karma.
Someone lost and something found.
Refuse Kenji's kiss.
Lie to someone, help the rabbit cheat, steal some money.
Find all the scattered coins.
Beat Kenji and Bo at their own games.
Return to the shrine after lunch and make a special wish.
Finish the game.
Finish the whole list with high karma.
Catch a fish at the red bridge.
Buy tea from Teaman.
Take the last bus of the day.
Send a letter to someone special.
Get all 5 gachapon from the gachapon machine.
Help the turtle achieve his goal.
Make it out of the Tanaka House.
Get into town in the morning.
Make a wish at the shrine.
Cross the Cold Stream.
Just leave the house!