Welcome to Union (Male Reader X Crossover Harem)
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- Parts 7
MatureOngoing2h 51m
Last published Fri, Oct 10, 2025
Across the universe there are worlds that possess powers, some are hidden, others rely on them, some are use in machines and others are use for fun. However they all share common interests by protecting, defending and fighting off anything wether it would be monsters or villains in all shapes and sizes. The problem was that they all are on separate worlds, no way of traveling to these worlds or even know if they're truly are other living beings. Luckily there is an answer for that, what if there is a school where they are united. Let's travel with these alternate worlds where they all unite together and share their experiences together in a newly built school
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If any deity out there ever isekai me please make me into my characters in the stories with all the powers/abilities/looks but Must finish the story of the world(Finish Twilight World to move onto the others). Previous abilities/Equipment/Powers/Clothes will be sealed(AN:if u isekai me keep my height/weight/Dick Measurements the Same[Height-5 foot 9 inches/Weight-170 Pounds/Dick Measurement-10 inches long and 3 inches thick] + please give me instant mastery and comprehension for my skills and weapons please).(mates will accept each other All OC's will have the mix of personalities of the each character (They Will all have the immortality of ban from the seven deadly sins and will be officially 16 in the entry to all worlds). (They Will all have the inability to feel pain or remorse) Starting Point of Each World: Twilight-Appears 1 day before canon Fem Creepypastaverse-Appears in the middle of a fight between slenda's(Female Slender) proxies and Zalga's(Female Zalgo) proxies in the forest Seraph of the end-Appears as energy when yuichiro is experimented on in the orphanage, but fully forms after yuu Meets Asuramaru RWBY-Appears at the dust till dawn shop at the same time ruby does Fate/Grand order-Appears 666 A.D. as energy but fully form an hour before jack Highschool DXD-Appears in the dimensional gap 1 week before canon and meets ophis. ?7th world-Appears in the dimensional gap? Order of worlds being isekai'd to(+Mates in each world)(+Seal Time) 6th World: Twilight/Alice/5 Years 5th World: Fem Creepypastaverse/Female Kakegao and Female Nurse Ann/3 hours 3rd World: Seraph of the End/Female Asuramaru/Till yuuchiro hyakuya first plays the trumpet 4th World: RWBY/Ruby Rose and Blake Belladonna/Until Ozpin Meets Ruby 2nd World: Fate/Grand Order/Assassin of Black-Jack the Ripper/2 hours 1st World: Highschool DXD/Ophis/None P.S. Brings Mates To Each World From previous and keeps in contact with a teleportation contract
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