Boom! Boom! Douga collection / Бум! Бум! Дуга Коллекция

The protagonist goes on a school trip in place of his sick sister. As the school is a girls school, he has to cross-dress.

Planning: Boom! Boom! Douga
Original Work by: Boy Okumori

https://www.dlsite.com/maniax/work/=/product_id/RJ2...ml/?locale=en_US

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[Story]
An unpopular cherry boy student is hit by a truck and dies. Yuuji Mihara is his name and in the world that he was revived... You can make girls your possessions using the power of sex. His new goal in life? To become the worlds most powerful SEX FIGHTER! and create his very own harem! Only one small problem... he's a premature ejaculator. But not to worry, the god of sex Mia is here to help him out!

[Character Voices]
Mia (CV: Suzuna)
Akari Kimura (CV: Mizuki Tachibana)
Yuuji Mihara (CV: Keita Nobata)
Tohru Sawajiri (CV: Pretty Wing)

[Credits]
Planning: Boom! Boom! Douga
Original: Aju (Nocturne Novels)
Comicalization: Kamata

https://www.dlsite.com/maniax/work/=/product_id/RJ1...ml/?locale=en_US