 If you liked
Ichinensei ni Nacchattara
|
 ...then you might like
Mujaki no Rakuen
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They have a similar plot of the males being turned into something they're not. In Ichinensei ni Nacchatara the male protagonist turns into a little girl, while in Mujaki no Rakuen, the male protagonist turns into his younger self. Lets just say this leads to them being surrounded by lolis, and the situation becomes uncomfortably awesome. Both reads are incredibly funny! Be careful when reading Mujaki no Rakuen though, as it is way more mature than Ichinenshi ni Nacchattara.
Have fun reading!