I created my own system - Chapter 300: A little introduction before the disaster

Nagasawa crossed to Naruto Universe and was bound to Konohagakure.If Konoha is severely damaged and destroyed, Nagasawa’s lifespan will be reduced.He panicked at the thought of the upcoming Nine-Tailed Demon Fox's attack , and the thought of Konoha getting destroyed left him in despair.Fortunately, while bound to Konoha, he can obtain templates of powerful characters.At the beginning, He got the Whitebeard template! Since it's the Whitebeard from the Summit War of Marineford, he can use Tremor-Tremor Fruit's ability and Haki.Facing the Tailed Beast Ball, which terrorized Konoha Shinobi, Nagasawa leaped and shattered the Tailed Beast Ball with one punch!

Ren Arakawa thought getting stabbed by his psycho ex-girlfriend was the worst way to die, and it would end his story. Turns out, it was just the prologue. He wakes up in a parallel earth full of dungeons, monsters, hunters and way too many women with clingy tendencies and knives.To make things worse, the goddess who reincarnated him? Yeah—she's the Yandere Goddess, the divine creator of obsessive love and the world he is going to reincarnate is female-dominated world, and she’s mad Ren called his ex “crazy.” So she curses him:“Every girl who likes you will become yandere. Like, explosively, murderously, loyalty-soaked yandere, to them you will be their oxygen. Good luck, idiot~ Go ahead and realise how amazing this yandere love is.”BUT—plot twist—the God of Creation, who’s been hiding in a broom closet in heaven since the beginning of the universe to escape his yandere stalker (guess who?), snatches Ren’s soul mid-reincarnation and gives him a cheat skill:[Heartsteal] – Absorb one power from any yandere girl who's obsessed with you.“My guy...you should help me...this bitch is driving me crazy..”Now Ren just wants to survive dungeons and not die from accidental love. Instead, he’s collecting powers:A healer who murders teammates because they looked at him wrongA pop idol who sends her fans to the shadow realm for shipping her with someone else other than RenA plant mage who grows garden clones of him to cuddle and possibly do other thingsArmed with sarcasm, trauma, and increasingly dangerous girlfriends, Ren must climb the power ladder, level up, and eventually punch a literal goddess in the face to break the curse and destroy the concept of Yandere and be a free man.Love? Nope. Power through emotionally unstable women? Absolutely.

In a world of swords and magic, where Dragon Knights and Grand Archmages wield powers capable of destroying the heavens and shaking the seas, the legends of their prowess echo throughout the ages.In this world, Sylvus, having crossed over from another realm, opens the Eastern Elixir Shop with a unique system that grants him mastery over ancient elixirs.Within this humble shop, elixirs from the eternal archives of Xianxia are available—each more powerful and mysterious than the last.A Nine-Star Saint Archmage toils away in the shop, working to repay his debt.A Nine-Star Platinum Knight pleads with the shopkeeper, desperately hoping to buy just one elixir.Even God Mages and Divine Knights engage in fierce battles just to secure the coveted Nine-Transformation Golden Elixir before others.

[Warning! Contains sex scenes, lemons and perverted MC. Read at your own risk.]Rain, a typical young master, led a fine life, enjoying power and status.But once confronted by the hero, Rain suffered a crushing defeat. Unable to accept this reality, he continued to confront him, not knowing that he was doomed to defeat from the start.Eventually, when Rain had lost everything he held dear and was in the depths of despair, the fog in his head cleared and he realized.“What the fuck am I doing?”“Why am I not using my brain and d*ck to defeat the hero?”After that, Rain found his own way to crush the hero...----What about the story?{Milfs, A lot of Netori and Stealing, Large harem, Oyakodon, Mature Women, Virgins, Yandere, Twins, Waifu of different races, Beast girls, Dragons, Elves, Succubbs, Demons, Goddesses, and lots of other cultural stuff}Of course, No Ntr, No Yuri.And what about the Main Character?{Highly Possessive, Shameless, Genius, Knows what he Wants and Gets it}