Oricon(June 4)
http://www.oricon.co.jp/rank/js/d/2014-06-04/more/2/
1. KAT-TUN(25,260)
2. AKB48(8,058)
3. EXILE SHOKICHI(7,175)
4. Arashi
5. Boudan Shounendan
6. Shiritsu Ebisu Chuugaku

私立恵比寿中学　ラブリースマイリーベイビー

Oricon(June 6)
http://www.oricon.co.jp/rank/js/d/2014-06-06/
1. KAT-TUN(6,212)
2. AKB48(4,414)
3. Shiritsu Ebisu Chuugaku(3,541)
4. Arashi
5. Boudan Shounendan

The bad thing is we don't know how many they sold the first day because there was strong competition :(

Oricon Weekly Ranking
1. KAT-TUN
2. EXILE SHOKICHI
3. Shiritsu Ebisu Chuugaku
4. AKB48
5. Berryz Kobo

^
1. KAT-TUN(144k)
2. EXILE SHOKICHI(64k)
3. Shiritsu Ebisu Chuugaku(50k)
4. AKB48(45k)
5. Berryz Kobo(43k)

momomofu said:

^
1. KAT-TUN(144k)
2. EXILE SHOKICHI(64k)
3. Shiritsu Ebisu Chuugaku(50k)
4. AKB48(45k)
5. Berryz Kobo(43k)

1. KAT-TUN(145,872)
2. EXILE SHOKICHI(61,804)
3. Shiritsu Ebisu Chuugaku(53,913)
4. Berryz Kobo(44,219)
5. AKB48(39,422)

Oricon(June 9)
http://www.oricon.co.jp/rank/js/d/2014-06-09/
1. KAT-TUN(1,794)
2. Arashi(1,741)
3. Shiritsu Ebisu Chuugaku(808)

With idols it's probably safer to assume that everything has event tie-ins, because it's a rarity nowadays to buy an idol CD and get nothing. Butterfly Effect has some special events through the forTUNE box sets, which have their own separate website where you can order the single and see member videos (including some special Po-chan insanity there at the bottom). However, the fact that they can stay in virtually the same chart position for the whole week means that they are getting more popular, since you can see that Berryz and other non-AKB idols tend to fluctuate anywhere from #1 to #25 on the daily charts for the first week since they are far more reliant on events for sales.

It did look like they're more stable than other idols (excepct AKB). The first day I was "cursing" because Berryz ranked over them but the next day they pretty much disappeared. I'm really happy for them and it's good to see that losing Mizuki, Natsu and Hirono didn't affect them sales wise.

Lurkette said:

which have their own separate website where you can order the single and see member videos (including some special Po-chan insanity there at the bottom).

We were so lucky to get Kaho and Riko, they're like the perfect couple, they complement each other and the whole group so well. Each day I realize it's the little things that make me love Ebichu:
- Ayaka answering herself because she didn't want to hear the silence.
- Magical whispers answering Mirei's call like it was the wind that didn't want to leave her hanging.
- I don't speak japanese but somehow I know Rina was talking about food.