Breathless in Seconds

I raised a cat. I thought she was supposed to be well-behaved, but I never expected her to fall for someone else behind my back.

P.S.:

1. Yandere x cool and aloof

2. Older love interest, with a wild and uninhibited style

3. Both protagonists have awful personalities

P.S. You can't say I can't do it, but the author really can't keep the characters in character, write romance, or handle the plot.

Theme: You have to work hard and persevere toward your goals to see them through