Is it wrong to become a scumbag?

World: Chivalry of a Failed Knight - Absolute Duo - Is It Wrong to Try to Pick Up Girls in a Dungeon? - Gakusen Toshi Asterisk -
Stella: "He's mine!"
Touka: "No, he's mine!"
Kanata: "Get away from him!"
Nene: "He has promised to marry me!"
".........................." Tsukasa.
The girls stared at each other, watching each other, and they were ready to fight, but then they looked at Tsukasa at the same time.
"Tsukasa, who are you going to choose?!"
Tsukasa looked at the girls and said calmly, "You're all mine."
".................................."
They were in silence and took out their weapons without hesitation.
This is just a normal story of a young man who wants to date more than one girl and his difficulty.
"Is it wrong to become a scumbag?"
With this philosophical question, the young man starts his journey to becoming stronger, so he won't die under the attacks of several of his girlfriends.