 If you liked
Boku Girl
|
 ...then you might like
Shishunki Bitter Change
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Well, I wouldn't say they're similar, it's just that the body swap that happened to Yuuta and Yui (the main characters) came against their will and are forced to live each other's life until they turn back.
The story (mostly) deals with the female lead which shows how hard it is to be a girl, so while reading Boku Girl I felt a resemblance to Shishunki Bitter Change