is the second full-length album by J-pop group Berryz Kobo, released on November 16, 2005. "Dai 2" (the second) is pronounced Dai ni. The first pressing of the album was enclosed in a cardboard slipcase and included four double-sided photocards of the band. The album peaked at #19 on the Oricon weekly charts, charting for 3 weeks.
This album was the last Berryz Kobo release to feature Maiha Ishimura, who graduated from Hello! Project in 2005 in order to focus on her education. Ishimura's vocals are featured on the singles within the album; she is, however, not credited anywhere and does not feature on the cover. The seven remaining members of the band are depicted in school uniforms and carrying bookbags.
Dai 2 Seichà Âki would be the first of an informal trilogy of three Berryz releases, each issued within one or two weeks of each other, to close out the group's second year of existence.
is the first single taken to promote Dai 2 Seichà Âki. It entered the Oricon Weekly Singles Chart at number 20, with 11,000 copies setting a record for Berryz Kobo's first week sales.
The second single, "Koi no Jubaku" (æÂÂã®åªç¸Â) (Love's Spell), was released on November 10, 2004. The single entered the Oricon Daily Singles Chart at number 6.
The third single, , was released on March 30, 2005. The single placed 7th in the Oricon Weekly Singles Chart, It became the group's first single (or album) to rank in the Top 10 and also its first to sell over 20,000 copies. At that time, the group's average age was below 12 years.