Planned to Become the Mother

is chapter 5 of the Beelzebub manga.

Summary
In a dream, Tatsumi finds himself lying in a sea of water. Thinking Beelzebub wet his bed, he tries to wake up to spank him. Having woken up, he finds himself in his room, now flooded. As Tatsumi tries to figure out what had happened, the water pours out of his house through an open window on a rainy day.

Standing on the window sill, Hildegarda informs Tatsumi that he slept in Beelzebub’s blessed urine. Apparently, his urination season has arrived, in which his relieving will flood the town and destroy crops, the first step of destroying humans. Tatsumi rushes to fix the problem.

Takayuki comes to Tatsumi’s house to find water dripping out his window. Tatsumi explains to him what had happened. Beelzebub is seen shivering with his genitals tied up. Not knowing what to do, Tatsumi calls for everyone to rip out their brains. Hildegarda scoffs the “off-topic conversation” and is more concerned over which town to sink. Enraged, Tatsumi tells him to stop talking and do push-ups. Takayuki claims he has no responsibility for Beelzebub and that he doesn’t want to think of any good ideas to take care of him. Tatsumi tries to woo him, but Takayuki feels more annoyed. Frustrated, Tatsumi scolds him for thinking it’s okay for the entire country to be flooded, to which Takayuki scolds him back and tells him to put a diaper on Beelzebub. Realizing his idea, Tatsumi rushes out with Beelzebub to get diapers and leaves Takayuki to take care of and restore his house.

Takayuki, not even sure if diapers will solve the problem, asks Hildegarda to help him clean Tatsumi’s house. Trying to act cool, he tries to sympathize with Hildegarda for the work involved in raising Beelzebub. However, this backfires as Hildegarda takes offense at his interpretation of raising Beelzebub as “work”. Takayuki is surprised at her scolding, having expected a light conversation on the burdens of raising Beelzebub. Hildegarda is offended at her existence as a servant demon being taken as merely “work” and flies off to catch up with Tatsumi. She recalls the Great Demon Lord commanding her to be his mother.

At the store, Tatsumi is frustatingly helping Beelzebub try on diapers. He puts one over his head, instead of through his legs. He takes the open packs of diapers and Beelzebub to the cashier, whom warns him not to take store goods and open them. Midway through telling him, the cashier, revealed to be Shintarō, recognizes Tatsumi and helps him pick up the diapers. He mentions that Hajime will take a month to heal. A flashback of Hajime shows him having landed on a bush after Tatsumi punched him off the school window. Hildegarda, still finding him to be hostile, draws out her sword. Shintarō mentions that Tatsumi has officially beaten a Tōhōshinki of Ishiyama. Walking away, he warns Tatsumi that he’ll be busier from now on and wishes him good luck. While Tatsumi tries to figure out who he just met, Hildegarda accidentally lunges her sword at Beelzebub, causing the tie around his genitals to break and set his urination off. The force of Beelzebub’s urination is so strong, he flies backwards, but he is still caught by Tatsumi in time. Annoyed at the tie having broken already, and finally noticing Hildegarda, she tells her to do something. People around the flooding store begin chasing after Tatsumi, wondering what’s going on with him and the flooding. Hildegarda offers to take the two out into the ocean. Flying on Ak-Baba with Tatsumi and Oga, she tells the Great Demon Lord in thought of how she still can’t seem to understand Tatsumi. Tatsumi asks her why she didn’t offer to fly Beelzebub out into the ocean from the beginning, to which Hildegarda tells him to shut up or fall.

Back at Tatsumi’s home, Takayuki encounters Tatsumi’s parents, shocked at what they find. Enraged, they ask him what happened.

VOMIC adaptation
A VOMIC adaptation of the chapter was aired through the first half of September 2010, starring the same cast as used in the anime series.