|Rōmaji||Buta Yarō ni wa Ashita ga Nai|
|Release Date||October 24, 2018|
|Opening Theme||Kimi no Sei|
|Ending Theme||Fukashigi no Karte|
|Episode 3||Episode 5|
There is No Tomorrow for a Rascal (ブタ野郎には明日がない, Buta Yarō ni wa Ashita ga Nai) is the fourth episode of the Seishun Buta Yarou wa Bunny Girl Senpai no Yume wo Minai anime adaptation.
After Mai's "puberty syndrome" is resolved, Sakuta encounters another strange phenomenon without respite. Day after day, it is the same day for Sakuta and there is no tomorrow. When he consults Rio, she raises the possibility of "Laplace’s demon" -- that someone may be repeating and redoing a day.
After resolving Mai's adolescence syndrome, Sakuta and Mai have a pleasant lunch together in school. While doing so, Mai informs of Sakuta the new job she acquired in drama staring July. After eating, Mai accepts Sakuta's feelings for her and becomes a couple. However, Sakuta encounters another strange phenomenon without respite. Day after day, it is the same day for Sakuta and there is no tomorrow. He seems to have the same interactions with his friends and even has the same TV news and the same classes in school. After venturing the school on the repeated day, he sees Tomoe getting confessed by another student. After, July 27th repeats itself again, causing Sakuta to ask Futaba for her help. When he consults Rio, she connects this occurrence with the principle of "Laplace’s demon" - a concept in which matter can be predicted in the future, as all objects fall under the laws of physics. As such, the day was repeating due to someone constantly predicting the world's future. However, Rio explains to Sakuta that Laplace's demon (the one predicting the future) would act differently from everyone else. Sakuta manages to find Tomoe, who was the one possessing the ability to loop time. Tomoe, still confused, explains how her friend Rena had affections toward Maezawa, the boy who confessed to her. However, Sakuta accidentally falls onto Tomoe, disgusting Maezawa from asking her out and subsequently angering Mai. This breaks the cycle of the repeated June 27, but Mai was missing the next day. Futaba tells Sakuta that she may have feelings for Kunimi, who is already in a relationship with Saki. After, Tomoe began working for the restaurant Sakuta is employed in and asks Sakuta to have a false relationship. After Sakuta arrives home, he finds Mai waiting in front of his doorsteps asking him why he hasn't given her an explanation yet.
- This is the first episode to feature a different character in the end credits.