The following chart shows the time it takes me, (Okasa), to fully recharge my mental energy from empty. Through all these tests, I had 30 lessons with Master Sespos.

Respos Lesson	Time	Time w/ OE	# of ranks	Improvement	Improvement w/ OE
1 - 11	?	?	-	-	-
12 - 22	7 : 20	8 : 29	11	-	-
23 - 35	6 : 24	7 : 15	13	-12.7%	-14.5%
36 - 47	5 : 42	6 : 20	12	-10.9%	-12.6%
48 - 59	5 : 06	5 : 39	12	-10.5%	-10.8%
60 - 71	4 : 32	5 : 07	12	-11.1%	-9.4%
72 -	4 : 00	4 : 42	-	-11.8%	-8.1%