The worst man in history is going to spread happiness!!
S1E1
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The story revolves around an unconventional children's show called "Minna de Utao!" Kenta is a young musician whose band breaks up and who gets dumped by his girlfriend. To top it off, his own family labels him as useless. Unexpectedly, he becomes an "uta no oniisan," a singing character on the children's show.