WATASHI NO KOKORO WA OJI-SAN DEARU

Description

"Haruka Yamagishi" is an old man who has no friends or family and just goes back and forth between work and home. one day
When she wakes up, she finds herself in a different world. Moreover, for some reason, she turned into a beautiful dark elf! ?
Haruka has inexhaustible magical power, a sturdy body, and a new life in which she can do anything, but her inner self...
There's no way his girlfriend (boyfriend) can be unrivaled, and he just keeps thinking about it.
...However, through her friends she met and her activities as an adventurer, changes gradually began to emerge.
The old man who gave up on his girlfriend's life in this world grows his "heart" in the new world and her body.
There are some cheats, but it's a heart-warming adventure story!