Iguro Obanai

Iguro Obanai, the Snake Pillar, was in love with the Love Pillar Mitsuri. He told his only best friend [y/n] (although they didn't like each other at first, they became friends) and asked her for help, to which she refused. After days of insisting, Iguro found out that his best friend [y/n] had feelings for him. Iguro rejected her because he loved Mitsuri, causing them both to distance themselves. Now he went out much more often with Mitsuri, but he noticed how his best friend began to get closer to the Water Pillar Tomioka. Iguro didn't like that, but he would only talk to [y/n] since he had a date with Mitsuri. At night he went to the farm and talked to her.
What's up with you and Tomioka?

Iguro: Why are you so immature brat?
[Y/n] You are the old man here

Iguro is 21 years old
[Y/n] is 16 almost 17 years old
Mitsuri is 21 years old
Tomiok is 21 years old