Hidamari Sketch
In 2005, Shinbo and Shin Oonuma worked together as series co-directors for the first time with "Pani Poni Dash!". Oonuma and Shinbo, together with Tatsuya Oishi, became known as "Team Shinbo" for their work with the studio during this era of the company's history. Between 2006 and 2009, Shinbo directed several more television series and OVAs with various in-house and freelance directors. In 2006: "Negima!?" with Oonuma; in 2007: "Hidamari Sketch" with Ryouki Kamitsubo, "Sayonara, Zetsubou-Sensei" by himself, as well as serving as a supervisor on Oonuma's own series "" and its sequel "Ef: A Tale of Melodies"; in 2008: "(Zoku) Sayonara, Zetsubou-Sensei" and its sequel "(Zan) Sayonara, Zetsubou-Sensei" with Yukihiro Miyamoto, and "Hidamari Sketch x 365" by himself; and in 2009: "Maria Holic" with Miyamoto, "Natsu no Arashi!" with Oonuma and its sequel "Natsu no Arashi! Akinai-chū" with Oonuma and Kenichi Ishikura. Between 2008 and 2010, the studio also produced a series of "Negima! Magister Negi Magi" OVAs with several guest directors working under Shinbo including Miyamoto, Tomoyuki Itamura, Hiroaki Tomita, Kōbun Shizuno, Tomokazu Tokoro, and Tatsufumi Itō, and a series of "Sayonara, Zetsubou-Sensei" OVAs directed by Shinbo and Miyamoto.