Grandpa is a Boy Detective · more like this

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Editorially ranked, with reasoning.

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    Time Patrol Bon

    Time Patrol Bon

    1978

    Mahou no Iroha!

    Mahou no Iroha!

    ★ 7.02 · 2009

    Mebius no Tamago

    Mebius no Tamago

    1996

    Nazotokihime wa Meitantei♥

    Nazotokihime wa Meitantei♥

    2010

    Yojouhan Time Machine Blues

    Yojouhan Time Machine Blues

    ★ 7.42 · 2020

    Daikenja Riddle no Jikan Gyakkou

    Daikenja Riddle no Jikan Gyakkou

    2023

    Toki wo Kakeru Shoujo: After

    Toki wo Kakeru Shoujo: After

    2009

    The Detective Is Already Dead

    The Detective Is Already Dead

    ★ 7.06 · 2020

    Moko and unusual Murderers

    Moko and unusual Murderers

    2012

    Detective in Different World

    Detective in Different World

    2020

    Shibatora

    Shibatora

    ★ 7.92 · 2006

    Da Vinci-kei Joshikousei

    Da Vinci-kei Joshikousei

    2013