"Ribunesu" is a shonen manga by Yuki Domoto, with all 12 volumes available. [Synopsis] The protagonist, Tetsuro Kaido, is a superhuman high school student who dotes on his younger sister, Kasumi Kaido. With his mother deceased and his father working alone on a business trip, he depicts his life with his beloved sister, his childhood friend Asuka Saijo, and his friends. Tetsuro, while wavering between Kasumi, whom he loves the most, and Asuka, who reciprocates his feelings, watches over Kasumi's growth as the "strongest brother" and grows himself. [Condition] This is a complete set, and the condition appears to be clean to the untrained eye. (Please also check the photos.) Please refrain from purchasing if you are concerned about the product condition or are very particular. *The obi (paper band) is missing from volumes 1-4. I have read it a few times after purchasing it, and it has been stored in a commercially available manga storage box. The first photo is of the front. The second photo is of the top. The third photo is of the back. The following photos are of the covers of each book.