 If you liked
Isekai Yakkyoku
|
 ...then you might like
Lioncourt Senki
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Middle-aged men reincarnate into a young boy in a noble family, in a medieval world.
Follow both MCs adapting in their new environment after having a second chance in life in a better position than before.
(! Be aware that Lioncoeur Senki turns very dark after some time so consider it Seinen, it for sure is not sunshine and rainbows.)