Omniversal Mercenary: Marvel, HOTD, Demon Slayer, MHA OM

Arthur, a crippled guy, after many struggles, sacrifices, and finally his death becomes an Omniversal Mercenary.
A job that gave expected or even unexpected rewards upon completion of the objectives.
Now he gives his all to complete the missions and take back everything he lost... while also conquering a few anime girls...?
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[First World]: [ Marvel ] (a short mission, here)

[Second World]: [ HOTD - High School Of The Dead ] (long mission)

[Third World]: [Demon Slayer] (Current world)

[Fourth World]: [My Hero Acadamia]

[Fifth World]: [ MCU x X-men ]

Tags: [Action] [Romance] [Genius MC] [Gray MC] [Strong MC] [Multiverse] [R-18] [World Hopping] [Slice of Life] [Omniverse]
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Discord Link: https://discord.gg/T3GN7nqKgS
If you want to read ahead, or just want to support me, here is the pat reon link:
https://www.pat reon.com/Marveller
(Remove the space!)
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Some important things :
1. English isn't my first language. So, try to overlook or help me fix a few mistakes that might occur by mentioning them in the chapter's comment section. I will fix it ASAP.

2. Yes, again. There will be a Harem in this novel, but only One or Two girls from a particular world. No Pokemon Harem - proper romance will be there.

3. MC will not be a Slave to the System or Missions.

4. There will be occasional adult scenes in this novel.

5. No Rape, No NTR, No Yuri, No Yaoi...

6. Chapter Length = 1300~1600 Words. Sometimes even longer chapters will be released.
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Also, the art is not mine. I got it from google. If the creator sees this and wants credit or wants me to take it down, just let me know.

This is just a fan-fiction. Please know I claim no ownership or credit regarding the original characters.