No, you don’t understand.
Gai is Kakashi’s best friend, Gai is to Naruto as Kakashi is to Sasuke. Gai is the only person Kakashi accepts as his rival, as well as his last tie to what used to be a normal life for him. Now that Obito and Minato and Rin are gone, Gai is essentially all that Kakashi has left.
If Gai dies, Kakashi will have no one.
No guys, you don’t understand. Imagine Gai trying to cheer up Kakashi after his depression because of Obito and Rin’s deaths, and then Minato’s. Imagine Gai creating the most stupid challenges just to distract Kakashi or at least make him go out of his house for something that wasn’t missions.
But if Gai dies (I hope he doesn’t, with Neji’s death I had enough) Kakashi won’t be alone, he’d have Naruto, Sakura (and maybeeee even Sasuke?), Sai and Yamato. Of course it wouldn’t be the same, but team seven is Kakashi’s family too.
(Source: datte-bye-ho, via datte-bye-ho)