User blog comment:Tokugata Kuchikukan/Clash! Casual Newface vs The Spring Monster!/@comment-25999494-20150430135710/@comment-25999494-20150501021633

E-5 is actually very easy, even at hard mode.. if you can tag Mikuma x Mogami + SS, Suzuya x Kumano + SS, or a combination of Ryuujou/Choukai/Yura + SS.. whichever one that you prefer.. make sure that you have one of these options if you are to tackle the map.. make sure every girl that can double attack at night have a Type 3 Shell.. and you are good.

E-4 at Easy/Medium is preferable since you need a lot of Fighter Power to get AS+ at boss.. getting AS at boss will result in draining more bauxite and less chance of killing the Oni at day light.. don't run E-5 at easy, at least on medium.. or you won't be able to run E-6 at hard mode..