Quick missions?

[ArcSilverpaw]

I am currently trying to raise my PM's Battle strength and it is taking a while. The quickest mission I have thought was the Lvl 1 C rank mission, since it always increases a PM's battle strength by 24% everytime you get an S no matter what mission you do.

Since I am a noob at this, I dont know about many missions and was hoping that someone on here would know of a really fast mission I could do. Got any suggestions?

[Positive]

Duel in the ruins? Not sure if you can S it solo though.

[Tawon]

white beast C as FM can do like 5mins ummm iunno what else lol, you could do true darkness in like 3 mins on C but get A rank

[Ilikelamp7]

Unsafe passage is the fastest mission to S rank.

[chaos-shadow]

Yeah, I always thought Unsafe Passage was the fastest? The first level is only like... 3 rooms big sometimes?

[VexedEyes]

True darkness is the shortess in game. 2 blocks long with boss though. My 65 acrotecher can run it in 4 mins.

[Orochinagi]

I thought about True Darkness but I'm not sure you can "S" it without getting ppl to hit those switches for the Carriguine Rape Room.

[Alleria]

Dancing Birds C is just as fast as Unsafe Passage C.