Prequel to .

Super Sonico is a clutzy, adorable, and well-endowed 18-year old girl. She's a complete sucker for anything cute, especially stray cats, all of which she giddily adopts. However, though Sonico should be enjoying a carefree and simple lifestyle as a young college student, her life is really anything but easy: she must balance being a professional model, working part-time at her grandmother's restaurant, and practicing guitar and performing concerts with her friends Suzu Fujimi and Fuuri Watanuki in their band, First Astronomical Velocity—all while attending college. SoniAni: Super Sonico the Animation follows Sonico as she faces daunting challenges in her search for her place in the world, even when her days are brimming with love and happiness.

It is a cross over between the series Lupin III and Detective Conan and takes place after the television special Lupin the 3rd vs Detective Conan. The plot follows Conan Edogawa who sets out to apprehend Arsène Lupin III, the suspect of stealing a jewel called Cherry Sapphire.

(Souce: Wikipedia)

Yamato Akitsuki travels to Tokyo alone to study in one of the high schools located within the area. He lives in with his aunt who operates a public bath solely for the ladies in the local district and begins his normal high-school life. One day, he chances upon a girl in school and is immediately mesmerized by her beauty. He is shocked when he realizes later that the girl, Suzuka, is actually living next door to him. From then on, Yamato's ordinary life begins to change little by little.