Bokura no Nanokakan Sensou - Recommendations

Alt title: Seven Days War

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Kizoku Tantei

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A mystery man identifies himself as 'Kizoku' (Aristocrat) works as a private detective as a hobby. His age, academic records, family, where he lives and even what his real name is are all wrapped in a mystery.

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Indigo no Yoru

Centers on a host club in Shibuya called "club indigo." Unlike traditional host clubs, club indigo has hosts who are also dancers and DJs, and has more of a nightclub atmosphere, complete with an owner who was a former street tough himself. However, club indigo's employees also solve mysteries in their spare time all 

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Kokushikan Satsujin Jiken: Manga de Dokuha

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