Alright, looks like Aya and Chihaya have Saki. For now, it appears their biggest obstacle is time.
Nathan Sample
2017-02-04 10:43:40 +0000 UTC
Must not have been a pressure-related problem. Seems that there was plenty of rust on the hinges.
Misty May
2017-02-04 05:09:00 +0000 UTC
Well, 'somebody' had to give some of their air to Saki, and Aya is arguably the most capable of underwater work of the two (by a tiny margin), and Chihaya, being psychically larger, has a bigger lung capacity, and as such can give the most air of the two of them to Saki.
Misty May
2017-02-04 05:08:18 +0000 UTC
Presumably when Saki was on the way down and met the diving girls, they were halfway though their dive. They likely resurfaced between then, luckily they saw that reflection. And have been spending the last few diving down, finding where Saki went off too, and prying the door open. So yah, their air's pretty stale.
Misty May
2017-02-04 05:05:29 +0000 UTC
Oh that explains how they got in there to help c: Beautiful work!
Dragon-Tear
2017-02-02 23:49:30 +0000 UTC
chihaya looks to be at her limit too XD. aya gets the hard part :P