Itoshi Inuzuka

A few days after he was born, Itoshi received his little pup. An Akita Inu, barely a few months old, named Koki. The two instantly connected, and Koki became almost like a shield for baby Itoshi.

When Itoshi was five, the two were playing outside with other Inuzuka children, and by accident, Koki ended up badly hurting Itoshi's face. Even after going to the hospital, and Itoshi wasn't in critical condition, the doctors let them know that there would be a scar that they wouldn't be able to heal. Since then, Koki was much, much careful around Itoshi, even when Itoshi grew up.

When he was seven, Itoshi joined the Academy, and he was a small, little troublemaker. He was known for always skipping class and preferring to be on the playground with his friends from the same class rather than sitting in classes to learn. That dragged his grades down badly.

Although Keigo didn't pay much attention to Itoshi, the young Inuzuka didn't like the Hyuga at all. Rather, he could even say he hated him. There was an obvious rivalry between them that the Hyuga wasn't even aware off. Some teachers even compared them to Sasuke and Naruto.

As they graduated, Itoshi was overjoyed to be placed in the same team as Denji, however Keigo being there was a big no for him, personally. He managed to get over it as time passed, but it still bothered him quite a lot.

When he was thirteen, he became a chunnin.

He became a Jonin at 16, and he was the only one in his team that didn't become an ANBU, however he became a teacher at the Academy when he was around 20. He didn't join his team in missions much after that, but he still cooked them meals, especially for Denji.

Itoshi realised his romantic feelings for Denji after a small argument with Keigo, the subject being about Denji, and Keigo spelling it out to him. He was, truth be told, extremely shocked at the way Keigo could tell he was in love, yet nobody else realised (they did, he found out after going to his family for advice on how to deal with it). It took him around five years of continuous stupid flirting, and dates-not-dates for Denji to realise his own feelings.