Tantei no Susume - Amagaeru no Tsuioku Hen

Hello. I'm a detective student at Hana no Shoujo College.
My father is a criminal investigator. My name is Kisa.

Summer is here and I've come to the rural mountain town of a boy named Yuuto.
But there are a series of strange occurrences.
Exploitation by a certain character in the name of "gathering",
the whereabouts of the Amagaeru debt, the appearance of
a suspicious rival detective.
And then, a murder!

Help me face off against the middle-school detective Minako
and unveil the truth hiding in Amagaeru.

[From DLsite English]