~Now, to the Enchanting Open Sea~ Hololive's Hosho Marine releases an EP! With over 4.3 million YouTube subscribers, Hosho Marine, who boasts tremendous popularity both in Japan and abroad as one of Japan's leading VTubers, releases her long-awaited new work! It contains all 4 tracks, including "BooooM!!!," the ending theme for the second season of the TV anime "Magilumiere Magical Girls Inc." Led by the lead track "BooooM!!!," with lyrics by q*Left and composition and arrangement by Giga, this is an album where you can experience a new "Marine World" depicted through collaborations with a lineup of up-and-coming creators. A new voyage with Captain Marine, guiding you to scenery no one has ever seen before, now begins.