This Is For is TWICE's fourth Korean studio album, released July 11, 2025 via JYP Entertainment and Republic Records — their first full Korean studio album in nearly four years, following Formula of Love: O+T=<3 (2021). The title is a deliberate double meaning, representing both the group's fourth full album and a work dedicated to their fans. The fourteen-track album opens with "Four" (an intro) and leads into the title track "This Is For," followed by group tracks "Options," "Mars," "Right Hand Girl," "Peach Gelato," "Hi Hello," "Seesaw," and "Heartbreak Avenue," plus five subunit tracks: "Battitude" (Nayeon, Jeongyeon, Momo, Mina), "Dat Ahh Dat Ooh" (Sana, Jihyo, Dahyun, Chaeyoung, Tzuyu), "Let Love Go" (Jeongyeon, Momo, Sana, Tzuyu), "G.O.A.T." (Mina, Dahyun, Chaeyoung), and "Talk" (Nayeon, Jihyo) — a subunit structure last used on Formula of Love. Notably, this is the first TWICE Korean studio album on which no members received songwriting credits. A digital deluxe edition released July 14 added an extended "This Is For" and "Takedown" (Jeongyeon, Jihyo, Chaeyoung). The physical album comes in 19 versions: three standard photobook editions (This, Is, For), nine individual member digipack editions, the standout Confetti version (mini CD-R set, 164-page mini book, 28-page lyric book, keyring, sticker set, photocard), three Polaroid editions (This, Is, For), and three vinyl picture discs (Target-exclusive Plumberry; TWICE Store-exclusive Honeydew Glitter and Dragonfruit Glitter). Standard editions include a photobook with PVC cover, 5 random photocards out of 45 types, folded poster (1/9), mini paper standee (1/9), and lyric poster. This Is For debuted at Circle Album Chart #1 with 671,771 first-week copies and Billboard 200 #6, making TWICE the first K-pop girl group to place seven different albums in the top 10 of the Billboard 200.