Moto Sekai Ichi'i no Sub-chara Ikusei Nikki - Chapter 69: Quickening / Fomenting Trouble.

Lan Anran was sent to the countryside by her parents when she was young. In her past life, she was filled with hate and did not end well.With a chance to relive her life, Lan Anran swears that she will never repeat the same mistakes again. On the surface, she is a medical genius and school beauty, but behind closed doors, she is a hacker and master hypnotist. Lan Anran will do all it takes to protect her family and cure her husband, Mo Jinrong."Master Rong is old and ugly, he isn't as fresh and tender as you are. Quick, give me a kiss!" Mo says."Miss Lan, please have some self-respect! Stay… Stay away from me!"

To be exact, the female lead is an “older sister” type, amid many beauties and handsome guys, she's no white lotus.Also, it's said that the name of this book is the same as a brand of sheep's milk powder.

A biker tries to save a cat on the highway and gets hit by a truck (Truck-Kun), he was rushed to the hospital but, due to internal bleeding, he dies only to be reborn as a cat, in a new world with a system.

In this new and vast world, he tries his best to get used to his new body and get stronger along the way. With his overpowered system and skills. To one day become untouchable.

I belong to a good sect that has never turned its back on me for my poor potential, has never forced me to study martial arts, and even helped arrange a betrothal for me when I was young.

My fiancée is a much renowned hot-tempered young miss. She’s beautiful, strong, and deeply loves me. Upon my start down the path of the Jianghu, I entirely relied on her to provide cover for me and before long, I became renowned as the #1 Pretty Boy of the Immortal Path.

Yet one day, I discovered that this person is apparently a man. A man in drag!

More unforgivable is that he thought I was a woman dressing as a man!

Me, as if my liver and guts are being cut to pieces: “Brother, what have you done with my fiancée?”

Him, as if a knife has been twisted in his heart: “Brother, what have *you* done with my fiancée?”

The waters of the Jianghu are indeed murky. Even if I am starving, even if I’m dying far from home, from this point on, I will not eat even a mouthful of rice prepared by him.

—So fragrant.

- Description from Novelupdates