skapbadoa | Hyouka's Rose-coloured Romance @skapbadoa | Uploaded 6 years ago | Updated 15 hours ago
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For those of you curious, the anime accurately adapts volume 1-4 of the LN, so if you want to continue with it you go straight into Volume 5. Even Though I'm Told I Now Have Wings takes place after the events of the fifth volume (a preface mentions this)

Hyouka Volume 5: baka-tsuki.org/project/index.php?title=Hyouka:Volume_5

Even Though I'm Told I Now Have Wings: baka-tsuki.org/project/index.php?title=Hyouka:Short_Story_4