Talk:Akashi's Improvement Arsenal/@comment-175.156.18.68-20141111235909/@comment-120.172.231.229-20141112011426

You upgrade 20.3cm no.3 by farming mikuma and grind her to lvl 35 to get another 20.3cm no.3.

You upgrade 20.3cm no.2 by using normal 20.3cm>20.3cm no.2