The Summer Hikaru Died

While writing the story, Mokumokuren tries to keep the horror to a minimum by trying to appeal to people's emotions rather than just being scary. Mokumokuren also feels the theme of the story adds to the horror based on the [[suspension bridge effect]], which states that it is easier to fall in love when feeling anxious or fearful.<ref name=int/> For the artwork, Mokumokuren tries to use [[onomatopoeia]] that are not often used, while also staying cautious to make sure it works properly in the context of the story.<ref name=int/>

While writing the story, Mokumokuren tries to keep the horror to a minimum by trying to appeal to people's emotions rather than just being scary. Mokumokuren also feels the theme of the story adds to the horror based on the [[suspension bridge effect]], which states that it is easier to fall in love when feeling anxious or fearful.<ref name=int/> For the artwork, Mokumokuren tries to use [[onomatopoeia]] that are not often used, while also staying cautious to make sure it works properly in the context of the story.<ref name=int/>

Mokumokuren initially introduced this as a one-shot in 2021 under the [[boys' love]] genre,<ref>{{Cite web|url=https://blnews.chil-chil.net/newsDetail/27384/ |script-title=ja:ホラーな人外BL『光が死んだ夏』がヤングエースUpにて連載開始！|website=ちるちる|date=2021-09-02|access-date=2024-07-22|language=ja|archive-date=2023-01-15|archive-url=https://web.archive.org/web/20230115045407/https://blnews.chil-chil.net/newsDetail/27384/}}</ref> but they later clarified it to be a "[[Coming-of-age story|coming-of-age]] horror" with "queer" themes, stating that the manga was never serialized as a romance.<ref>{{cite web | author=Mokumokuren | url=https://bsky.app/profile/mokmok-len.bsky.social/post/3lbebb3l6ms2w | title=The genre tag on the official website and the direction of advertising have not changed since the story was first serialized. Within official boundaries, from the beginning, it has been consistently advertised as a "coming-of-age horror story." (It is true that the official boundaries are quite narrow...) / Regardless of the genre tag, as well as the story not having any romance, I guarantee that it is a queer story. | via=[[Bluesky]] | date=2024-11-19 | access-date=2025-07-08 | url-status=live | archive-url=https://web.archive.org/web/20250708212447/https://bsky.app/profile/mokmok-len.bsky.social/post/3lbebb3l6ms2w | archive-date=2025-07-08}}</ref><ref>{{Cite web|url=https://x.com/mokmok_len/status/1545046872410443777?t=02eqS8qqa_349DYOWr6qzw&s=19|script-title=ja:光が死んだ夏は何のジャンルの漫画なのか？と混乱している人をよく見かけるのですが、私もよく分からないで描いています。読んだ人それぞれに好きに受け取って貰えたら嬉しいと思っています。|publisher=Twitter|date=2022-07-07|access-date=2024-07-22|language=ja|archive-date=July 26, 2024|archive-url=https://web.archive.org/web/20240726070925/https://x.com/mokmok_len/status/1545046872410443777?t=02eqS8qqa_349DYOWr6qzw&s=19|url-status=live}}</ref>

Mokumokuren initially introduced this as a one-shot in 2021 under the [[boys' love]] genre,<ref>{{Cite web|url=https://blnews.chil-chil.net/newsDetail/27384/ |script-title=ja:ホラーな人外BL『光が死んだ夏』がヤングエースUpにて連載開始！|website=ちるちる|date=2021-09-02|access-date=2024-07-22|language=ja|archive-date=2023-01-15|archive-url=https://web.archive.org/web/20230115045407/https://blnews.chil-chil.net/newsDetail/27384/}}</ref> but they later clarified it to be a "[[Coming-of-age story|coming-of-age]] horror" with "queer" themes, stating that the manga was never serialized as a romance.<ref>{{cite web | author=Mokumokuren | url=https://bsky.app/profile/mokmok-len.bsky.social/post/3lbebb3l6ms2w | title=公式サイトのジャンルタグや宣伝の方向性は連載当初から変更したことは無いです。公式の手の届く範囲では最初から一貫して「青春ホラー」として宣伝しています。（公式の手の届く範囲がとても狭いのも事実ですが…）ジャンルタグがなんであれ、そしてこの話がロマンスで無かったとしても、クィアの話であることは作者として保証します。 | trans-title=The genre tag on the official website and the direction of advertising have not changed since the story was first serialized. Within official boundaries, from the beginning, it has been consistently advertised as a "coming-of-age horror story." (It is true that the official boundaries are quite narrow...) / Regardless of the genre tag, as well as the story not having any romance, I guarantee that it is a queer story. | language=ja | via=[[Bluesky]] | date=2024-11-19 | access-date=2025-07-08 | url-status=live | archive-url=https://web.archive.org/web/20250708212447/https://bsky.app/profile/mokmok-len.bsky.social/post/3lbebb3l6ms2w | archive-date=2025-07-08}}</ref><ref>{{Cite web|url=https://x.com/mokmok_len/status/1545046872410443777?t=02eqS8qqa_349DYOWr6qzw&s=19|script-title=ja:光が死んだ夏は何のジャンルの漫画なのか？と混乱している人をよく見かけるのですが、私もよく分からないで描いています。読んだ人それぞれに好きに受け取って貰えたら嬉しいと思っています。|publisher=Twitter|date=2022-07-07|access-date=2024-07-22|language=ja|archive-date=July 26, 2024|archive-url=https://web.archive.org/web/20240726070925/https://x.com/mokmok_len/status/1545046872410443777?t=02eqS8qqa_349DYOWr6qzw&s=19|url-status=live}}</ref>

=== Setting ===

=== Setting ===