White_Clown

if it still Nasuverse, how about become being Matou Shinji, set his origin as curse. Earlier story is about enlsaved Sakura (also having medusa in his hand). Medea will make contract with him instead Soichiro and than call Assassin (Hassan if Serenity). Taking Saber from Shirou with Ruler Breaker. Kill Archer then claim Rin. Next target is Cu Chuliann's master, Bazzet. The last is defeat Berseker and Take Einzbern. The Obsever will be Caren Hortensia.

next up?

it's depends how you'll interpret MC's development and fighting style. Since the other path looks like work as medium or enchantment for the illusion, some kind of elemental, poison, sound or formation will be good. Personally, I think [Poison] and [Sound] will be good combination. If he is close combat type, weapon path is better one.

how about set MC's race as half-mink. As electrician, he can maximize advantage of Mink's electricity and his devil fruit can allow him to use and control Sulong mode even without Moon

wish the harem is Norn and Aisha. Their first meet is great castratope, suddenly they're show up in front him

how about make it as subspecies of twice critical. It's form as a sword (let's call it as Critical Edge) and that triple the power of the user.

first spirit ring [Strom Flash]. Ability: accelerate himself, true value is gathering momentum and electricity. weakness: since he move so fast, he'll get a greater damage if someone can destroy his momentum or hit him.

wait, don't it immosible to rise in 10 level just one year?

though that fruit is not directly strengthen him, it'll expand his option greatly and also make him can save people better. And when after eat devil fruit, use seastone when he train.

make some story about battle of Akainu vs Aokoji and also Hachinosu's incident if you can please