"Ah... Something's entering me...!"

Her whole body trembles with pleasure she has never experienced before... No! Deep inside... It's coming...!

(Source: Coolmic)

Notes:
- Chapter count includes one extra chapter.
- Originally serialized as a web manga under the title Onnanoko-tou Hyouryuuki: Ecchi no Aite ga Ore dake no Sekai (おんなのこ島漂流記〜えっちの相⼿が俺だけの世界).
- Simultaneously released in long-strip format on mobile reading platforms, resulting in a total of 18 episodes being sold in 6 longer ones digitally/in the tankoubon release + one extra chapter.