Dlsite ENG link: https://www.dlsite.com/girls/work/=/product_id/RJ01320224.html/?translation=RJ01320225
Translated by A Cool Person:

Adult: https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG01003998.html/
Otome: https://www.dlsite.com/girls/circle/profile/=/maker_id/RG01003998.html/

TL Info: https://twitter.com/break_in_two

The Otherworld Mage Can't Go Home!

One day, while out protagonist Haru was on her way home from shopping, a mysterious guy appeared in front of her. He called himself Isua, and told her he was a mage from another world. Though his initial appearance was a bit of a problem for Haru, through the passing of time, he came to be thought of as an important part of her family.

This was until his magic power returned to him, and so did his original form.
Confused, Isua told her something that she found even more unbelievable...

"To send myself back, I need to fornicate with a virgin"

[Contents]
Rough play to loving sex. Clit play and many insertions.

Total pages: 66 (4 cover pages, 56 main pages, 6 bonus pages)
* The bonus pages include 3 epilogue manga, 2 character pages, and 1 afterword.

Characters
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Isua
- Early 20's
- Height: lower 170's
A mage sent to current day Japan after losing control of his summoning magic. Self-purported aide to the Demon King. Acts bossy and rude to Haru, gradually warms up to her after being taken care of by her. A tsundere, not good at being honest with his feelings. Forms a strong attachment to Haru and will stop at nothing to make her his. Not good at showing or receiving affection, acts in contrary to his true feelings.
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Haru
- Late 20's
Lives in extremely ordinary working life in present day Japan.
Couldn't bring herself to just leave Isua after he appeared due to her extremely kind, easy-going personality.
Brother and parents died in an accident, treats Isua like her lost brother due to her life of loneliness.

Base +25