General · EdgepediaOctober 3, 20263 min read

That Summer (ผมเจอเจ้าชายบนชายหาด)

That Summer (ผมเจอเจ้าชายบนชายหาด, also translated as "I Met a Prince on the Beach") is a 2025 Thai boys' love (BL) romantic drama series produced by GMMTV, in which a troublemaking young man sent to an island for the summer takes in an amnesiac stranger who is secretly a prince¹. It aired on the One31 channel in Thailand and streamed internationally on the GMMTV OFFICIAL YouTube channel².

Key fact	Detail
Original title	ผมเจอเจ้าชายบนชายหาด (That Summer)¹
Run	Premiered 19 September 2025; finale 21 November 2025; 10 episodes¹
Broadcast	Fridays at 20:30 on One31, with simultaneous streaming on GMMTV OFFICIAL YouTube²
Director	Jojo Tichakorn Phukhaotong; screenwriters Zaii Nuttamon Yimyam and Jojo Tichakorn Phukhaotong¹
Leads	Winny Thanawin Pholcharoenrat as Lava; Satang Kittiphop Sereevichayasawat as Wave / Prince Davin³
Runtime	About 50 minutes per episode, roughly 8 hours 20 minutes total¹
Audience rating	8.1/10 on IMDb from 524 votes³

Spoilers

Premise

The story follows Lava (Winny Thanawin Pholcharoenrat), a mischievous young man sent by his mother to stay with his uncle Pheng (Mond Tanutchai Wijitvongtong) on a small Thai island to reform his behavior during the summer⁴. Expecting a carefree vacation, he instead finds a mysterious young man washed up unconscious on the beach with no memory of who he is, and becomes responsible for his care⁴. Lava names the stranger "Wave" while his identity is unknown⁵.

The stranger is in fact Davin (Satang Kittiphop Sereevichayasawat), a prince of the fictional kingdom of Arantha who fled to Thailand for an unsupervised vacation⁵. He was attacked by his friend Victor, whose family planned to seize the kingdom, and lost his memory in the assault⁵. As Wave's past resurfaces, secrets involving the royal family, political unrest, and the assassination attempt threaten the growing relationship between the two leads⁶.

Cast and characters

The series stars Winny Thanawin Pholcharoenrat and Satang Kittiphop Sereevichayasawat, both members of the GMMTV roster who had appeared together in the 2022 series My School President; That Summer was the first leading role for each of them⁷.

The supporting cast includes Mond Tanutchai Wijitvongtong as Pheng, Lava's uncle, who is gay and competes in an election for village chief while hiding his relationship; Ryu Phudtripart Bhudthonamochai as Dr. Wut, the island doctor and Pheng's lover, who wants to live openly; Neo Trai Nimtawat as Tum, Lava's friend; and Mint Thishar Thurachon as Kratae, a nurse⁸. Namtan Tipnaree Weerawatnodom plays Princess Anya, Davin's sister³.

Production and release

The series was announced at the GMMTV 2025 : RIDING THE WAVE lineup event held in November 2024⁹. It was produced by GMMTV and aired on One31². Episodes were released in four parts on the GMMTV OFFICIAL YouTube channel with English subtitles, and the series was also available in Thailand through the AIS oneD streaming app from the oneD Premium package onward¹⁰.

The soundtrack includes three songs: "Wind and Wave" (สายลมกับเกลียวคลื่น) sung by Winny, "Belong With You" (ใจฉันมีแค่เธอ) sung by Winny and Satang, and "Sea and Star" (ดาวหลงทาง) sung by Satang¹¹.

Reception

On IMDb the series holds a rating of 8.1/10 from 524 votes³. Reviewers praised the seaside cinematography and the chemistry between the two leads, while some criticized the plot device of a second amnesia reset late in the series and a rushed final stretch¹². A Letterboxd reviewer described the series as looking like a summer postcard, with story shortcomings offset by its visual style¹³.

References

Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Series and fictional screen worlds › International serial drama and telenovelas › Turkish, Middle Eastern, and African serials › Thai serial dramas (lakorn) › Premiered 2025 to 2026

Initially written Oct 3, 2026 · Reviewed: Oct 25, 2026 · Edited: Oct 15, 2026; Oct 25, 2026; Nov 1, 2026 · Last review: Oct 25, 2026

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