A combination illustration and manga artbook featuring the ultramarine works and fantastical world of Sakatsuki Sakana. --- The few short manga stories included are a side stories that served as a precursor to Sakatsuki's eventual ongoing publication (https://mangadex.org/title/77c7d3eb-16e9-4ef2-81f0-4d3876a037c5/star-tripper-planetarium-ghost-travel). They are irrelevant to the main storyline, but follow 303's solo travels around Sakatsuki's starry universe. - 3.1 - Prologue - 3.2 - Listening to the Rain - 3.3 - Buying Sweets - 3.4 - Drinking Kikiriri - 3.5 - Seeing Space Fashion - 3.6 - Climbing the Tower - 3.7 - Making A Guess - 3.8 - Epilogue