Please, its been so long since there was redeemable summon contracting scrolls

Why people cry over ninjas like Shisui or Minato, if they know they cost around 10k-14k coupons, collect the right amount and then buy it, instead of begging every week, so they would show up again.

There are so many other ninjas or items, who wasn't in game for long time already.

Also feels like Shisui or Minato doesn't seem to be a special ninjas, when they are spawned in events that often.

Shisui was redeemable last lucky board (from 08/02/2018),

Jonin Minato was redeemable from Sakura's Gift (from 08/09/2018).

So, it wasn't that long ago ^_^