How Can There Be a Loyal Dog Mackerel in the Weak Cos System?

Another popular COSER time travel event [Black History! Black history! Stop looking, stop looking! Being timid by nature, I accidentally traveled to a detective agency when I was out in Central Plains. Fortunately, my sister transformed into a loyal dog, Osamu Dazai, to save me from dire straits. Hey, hey, hey, I'm just in poor health and afraid of social anxiety, don't think too much about it! However, my sister didn't take it too seriously to watch the fun, and she wrote a bunch of scripts for me to cooperate with her. Good guy, now everyone is looking at us with pitiful eyes. Note: atypical if line, regular cos wear Short-term illness, weak Zhongya & love for the superior leader (non-IF line) Power generation for love, more fate The main reason is that I hope it will be popular enough so that people can read my other spell book, Dog Juanji CP, "Dog Juanji Always Dare to Confess" Concept: Seeing is not necessarily believing