PeroPero often gets updated.
I will try to past what new cards and changes each update brings.

September the 16th 2015

The following 3 new cards are added to N-Gacha:
Mari Yamaguchi(N-B)
Fumi Anneu(R-B)
Hinako Toyoshima(SR-B)
The last two cards is also added to R-Gacha. These cards are not added to SR-Gacha.

Kurito gets the following 3 new card:
Kiyura Miono(N-B)
Nina(R-B)
Matoi Akino(SR-B)
The 3 limited cards Kurito had before have been removed from the game.

Reika Arita(N-M) an old slayer card was also added to N-Gacha.

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September the 18th 2015

E-Gacha are for sell again.
The follow new slayers cards have been added to E-Gacha:
Azusa Yumeno(N-M)
Rurian Hakuto(R-B)
Kashisu Kokuto(SR-S)

N-Gacha gets:
Azusa Yumeno(N-M)

The following 2 cards which was slayer cards in 3th event have been returned to the E-Gacha:
Hayami Terashima(R-S)
Souko Yukawa(SR-M)

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September the 21th 2015

The 6th event start. Lightning boss event.
The following 3 girls are added as rewards for 6th event:
Rewards
Kasumi Oshiya(R-B): reward for 100K EP.
Akira Shiranui(SR-B) Reward 100 super boss kills.
Ami Komodo(SR-B) Reward top 1000.

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September the 28th 2015

The 6th event 2nd week.

3 new cards are added to E-Gacha as slayer girls:
Wako Amagito(N-B)
Matsuri Sato(R-S)
Souko Yukawa(SR-B)

N-Gacha gets:
Wako Amagito(N-B)

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October the 5th 2015

6th event ends.
E-Gacha are removed.

SR-Gacha get the following new cards:
Himeka Muroran(SR-B)
Mizumi Nakai(SR-B)
Tamami Ikuta(SR-B)

SR-Gacha now have 20 R and 17 SR.
R-Gacha now have 21 R and 15 SR.
N-Gacha now have 30N, 21 R and 15 SR.

N- and R- Gacha have the following cards that don't exist in SR-Gacha.
Fumi Anneu(R-B)
Hinako Toyoshima(SR-B)

The 3 new Players can pick in next event
1) Kusomi Ogura(?-S)
2) Ayame Nanase(?-S)
3) Saya Sonoda(?-S)

New card with no known way to obtain :
Yukimi Sakuraishi(R-B)

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All the girls that can be obtained from bonus stage atm:




SR-Wild1, SR-Wild3 and SR-Wild5 can also be obtained from bonus stage.
This list is basses on 1000s of spins at bonus stage but if I am missing any girls that can be obtained form bonus stage please write.

N- and R- Gacha have the following cards that don't exist in SR-Gacha.
Nina(R-B)
Matoi Akino(SR-B)

^ incorrect, these cards are still kurito-only.
the cards you were referring to are Fumi Annei (R-B), and Hinako Toyoshima (SR-B)

Thanks - I updated the info. Please write if I more any more mistakes

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Shop is bugged again

1x N-Gacha should cost 1500 Pero - Bugged it cost 1000 Pero.
1x N-Wild cost 1000 Pero Correct
6x N Gacha should cost 7500 Pero - Bugged now it cost 9000 Pero (It say buy 6 pay for 5)
6x N-Will should cost 5000 Pero - Bugged now it cost 6000 Pero (It say buy 6 pay for 5)

When keys are for sell 1x N-Gacha + 1x N-Keys should cost 1800 Pero.
When keys are for sell 6x N-Gacha + 6x N-Keys should cost 9000 Pero.
When for sell in shop 5x N-Gacha + 1x Card reweal should cost 9000 Pero.

we should buy 1x N-Gacha quickly before they fix it

And the price of 1x N-Gacha in "Gacha tickets" tab is still 1500, so it's surely a bug. They should fix it soon

They sold 1xN-Gacha + 1x N-Key for just 400 Pero a while a go that was even better deal imo.
AT same time 6xN-Gacha + 6x N-keys was sold for 9000 Pero.

approximately 20h ago, right after maintenance ended, there was actually a bug where N wildcards cost 100 pero each (single) and N gacha tix cost 1k pero each (single)
that was simply wonderful...unfortunately, by the time I went to sleep and woke up, 8h later, the bug was fixed.

just wanted to mention it :x (stocked up 4.8k N wildcards from that after I maxed out all my normies :x)