Talk:Hifumi Takimoto/@comment-16491352-20170803105718/@comment-2001:4648:34E1:0:197D:65A6:E2F7:5D1-20180304101720

Senpai doesn't necessarily refer to someone older, but someone who have worked there longer also. So if they are the same age, but one joined a year earlier, then that person would be the others senpai.