Plot: Life is not fair it's even more clearer if you were born a male and raised in a world where women gain supernatural powers from a special peach from a place called Mato where demonic creatures called Shuuki's live in a dimension called Mato come to earth causing death and destruction everywhere they go Y/N was a young boy who was made into a slave endure horrible mistreatment but then rally his people and went against their owners and was then adopted by Toshinori Yagi the man who is famous for taking down Shuuki's with just his own body alone one day Toshinori decided to surprise for his birthday by giving him an older sister a girl by the name Aoba who already takes a liking towards Y/N smothering the boy with love then the famous Nana Shimura comes and believes that Aoba could potentially become her successor to her ability but unfortunately Aoba had no intentions of becoming apart the anti-demon defense corps which disappointed Nana but still trains the girl to be able to defend herself but an incident happened that caused Y/N to be chosen to become the next holder of OFA being personally trained by Nana along with Toshinori and Sorahika after years of training Y/N finally got One For All but Nana told Y/N that it be best the boy to stay hidden because since he is the first male to gain power it would bring trouble towards himself but then the young boy got himself involved in a Mato Disaster where he fought against the Shuuki's helping evacuate the people then the seventh unit came and helped with evacuation and killing the Shuuki's but the bastards keep coming and Y/N was about to use One For All until Kyoka Uzen came over to Y/N and told the boy about her ability and Y/N made the decision of becoming Kyoka's slave to her ability after the event Y/N would get involved in many events can Y/N and his allies rise to the occasion against the enemies that roam in the darkness of society and fight against the terrifying evil that lives in Mato so many questions and no answers are being given it seem only time will tell

Name: Y/N Shinzo Yagi
Hair color: Blue
Eye color: Blue
Gender: Male
Race: Japanese. Human. Megumareta.
Age: 18
Vital status: Alive
Appearance:

Peach blessing: The Eternal torch of the hero: One For All

Shared blessing: Eternal Chains: Slave(Via Kyoka Uzen)

Occupation: Demon hunter. Caretaker of the 7th Unit. Slave of Kyoka Uzen. Disciple of Nana Shimura, Toshinori Yagi and Sorahiko Torino.

Affiliations: The seventh unit. Anti-Demon Defense Corps. Nana Shimura(Mentor). Toshinori Yagi(Foster father & Mentor). Sorahiko Torino(grandfather and Mentor). Aoba Wakura Yagi(Adopted sister)

Tags:
1. Mato Seihei No Slave x My Hero Academia
2. Romance
3. Male Reader
4. Love
5. One For All
6. Harem
7. Nana Shimura
8. Fluff and smut
9. Magic
10. All for one
11. Original Characters
12. Corruption
13. Gender swap
14. Determination
15. Lewd
16. The eight gods of thunder
17. Discrimination
18. Toshinori Yagi
19. Sorahiko Torino
20. Superpowers