I. Introduction
The story is framed by a Reply 1997-style reunion between a group of five high school friends: Se Ri (played by Yoo Hye In, formerly of disbanded DSP Media girl group Puretty), who aspires to be a singer; her close friend Seul Bi (Kim Doo Ri); Seul-bi’s neighbour, the gruff Hae Sung (Kang Yul); the chummy joker of the group, Joon (Shin Joo Hyup); and giant dork Eun Woo (Kim Do Wan), who turns up for the gathering late.
II. Synopsis
Each character’s story unfolds in an interspersing of their narrations with flashbacks to four years ago, when they were 17 (hence the series title). They recount crushes and first loves, and fallouts with friends.
III. Episodes
Ep. 1
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Ep. 2
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Ep. 3
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Ep. 4
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Ep. 5
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Ep. 6
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Ep. 7
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Ep. 8
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Special Ep
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