I see 2 possibilities
Scenario 1) Doddsy is the SK as Mello, and Yotsuba are likely harmless
Scenario 2) Doddsy is not the SK, and Yotsuba contain and can win with the SK (Kyosuke Higuchi) or town, as long as Kira (faction or Light, not sure) is gone
My issue here is that Higuchi is the one...