On that snowy night, Yukichi decided he would take care of the woman who saved him. Little did he know what he was getting himself into. Now, since Saku is freaking out that her superior might've met Yukichi in person, Yukichi silences her with alcohol.

Yukichi is depressed again today, thinking about all the problems with his owner, Saku. How can an adult human who can't even separate trash make it through life? Doing this and that, Yukichi takes care of Saku's daily life.

Saku's coworkers bring up marriage, putting Saku into a panic. Would she be able to get married to someone while having Yukichi by her side?! What if the other person found out about his masterful skills? Her cat is too talented for her to get married!

Many workers struggle with the Monday blues. However, Yuri and Oshiro find that Saku comes into work every Monday at the top of her game. Perhaps she knows of some kind of secret countermeasure?! In actuality, Saku only thinks about work and Yukichi.

Yukichi reminisces about his past as he continues to spend his days with his worthless human. Though he has new worries every day, he manages to get by with is masterful skills. After all, he is the most masterful of cats.