April 30, 2023 Onii-chan wa Oshimai Mahiro Oyama 2160×3840 (1) Mahiro Oyama 4K UHD anime lock screen background Select wallpaper size2160×3840 (4K resolution)1440×2560 (Quad HD resolution)1284×2778 (iPhone 12 resolution)1125×2436 (iPhone X resolution)1080×2340 (iPhone 12 Mini resolution, Xiaomi Redmi 9, Xiaomi Redmi Note)1080×1920 (iPhone 7, Samsung Galaxy, Xiaomi)828×1792 (iPhone 11 resolution)750×1334 (iPhone 7, iPhone 6, iPhone SE)720×1280 (Galaxy S3, HTC, Sony Xperia)640×1136 (iPhone 5, iPod touch 5)640×960 (iPhone 4, iPod touch 4)