Taki Sahara

The first ranked student in their whole grade, Taki is Airi's best friend. He's very much relied on by Airi and Airi trusts him completely (once even saying that her heart would stop if he really wanted to ignore her). Airi complains to him a lot, and he always comforts her. Apparently they can talk to each other using telepathy (only shown once in Ch 12). It's hinted that he likes Airi. (source: wikipedia)