Takashi Nasujima

Takashi Nasujima is a teacher at Raira Academy. He would talk to Anri Sonohara, but as soon as Masaomi Kida would show up, Takashi would leave.

Before he targeted Anri, he was in a relationship with Haruna Niekawa. When he learned about Saika, he spurned Haruna and she moved to a different school. However, she later returned to pursue her love for him. Before she could cut him with her saika, Anri appeared to save him. After Takashi found out that Anri controlled the real Saika, he ran off. He was last seen desperately trying to mug Shizuo Heiwajima, but the incident ends as expected, with Shizuo knocking Takashi out. Takashi hasn't been heard from since.

Anime
Episode 02: He watches Anri in the Entrace cememony.

Episode 03: He tries to approach Anri, who ran away immediately.

Episode 05: At first Celty chases him then the slasher appears, which got him to a gettaway. Later he harrassed Anri, only to get chased away by Masaomi.

Episode 14: He attempts in harassing Anri again, and once again gets chased away by Masaomi.

Episode 16: He goes to Anri's house to find himself seeing Haruna. Then Haruna chased him trying to slash him. Then later he saw Anri as the true Saika.

Episode 17: Haruna is down and Anri says something to scare Takashi away. In the end of the pisode he tries to mug Shizuo, but he was beaten up because of that.

Durarara!! Saika
Volume 01: He sexally harasses Anri.

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