diff --git a/internal/howmuch/adapter/repo/event.go b/internal/howmuch/adapter/repo/event.go
index 761f00a..8ce9e45 100644
--- a/internal/howmuch/adapter/repo/event.go
+++ b/internal/howmuch/adapter/repo/event.go
@@ -26,6 +26,7 @@ import (
 	"context"
 	"database/sql"
 	"encoding/json"
+	"time"
 
 	"git.vinchent.xyz/vinchent/howmuch/internal/howmuch/adapter/repo/sqlc"
 	"git.vinchent.xyz/vinchent/howmuch/internal/howmuch/model"
@@ -51,11 +52,6 @@ func (e *eventRepository) Create(
 	panic("unimplemented")
 }
 
-// Delete implements repo.EventRepository.
-func (e *eventRepository) Delete() {
-	panic("unimplemented")
-}
-
 // GetByID implements repo.EventRepository.
 func (e *eventRepository) GetByID(ctx context.Context, eventID int) (*model.EventRetrieved, error) {
 	queries := sqlc.New(e.db)
@@ -66,8 +62,8 @@ func (e *eventRepository) GetByID(ctx context.Context, eventID int) (*model.Even
 	}
 
 	// marshal owner and users
-	var owner *model.UserBaseRetrieved
-	err = json.Unmarshal(eventDTO.Owner, owner)
+	var owner model.UserBaseRetrieved
+	err = json.Unmarshal(eventDTO.Owner, &owner)
 	if err != nil {
 		// Unexpected
 		log.ErrorLog("json unmarshal error", "err", err)
@@ -93,7 +89,7 @@ func (e *eventRepository) GetByID(ctx context.Context, eventID int) (*model.Even
 		DefaultCurrency: model.Currency(eventDTO.DefaultCurrency),
 		CreatedAt:       eventDTO.CreatedAt,
 		UpdatedAt:       eventDTO.UpdatedAt,
-		Owner:           owner,
+		Owner:           &owner,
 		Users:           users,
 	}
 
@@ -104,16 +100,47 @@ func (e *eventRepository) GetByID(ctx context.Context, eventID int) (*model.Even
 func (e *eventRepository) ListEventsByUserID(
 	ctx context.Context,
 	userID int,
-) ([]model.EventBaseItemEntity, error) {
-	panic("unimplemented")
-}
+) ([]*model.EventListRetrieved, error) {
+	queries := sqlc.New(e.db)
+	eventsDTO, err := queries.ListEventsByUserID(ctx, int32(userID))
+	if err != nil {
+		log.ErrorLog("query error", "err", err)
+		return nil, err
+	}
 
-// ListExpensesByUserID implements repo.EventRepository.
-func (e *eventRepository) ListExpensesByUserID() {
-	panic("unimplemented")
+	var events []*model.EventListRetrieved
+
+	for _, evDTO := range eventsDTO {
+		var owner model.UserBaseRetrieved
+		err := json.Unmarshal(evDTO.Owner, &owner)
+		if err != nil {
+			// Unexpected
+			log.ErrorLog("json unmarshal error", "err", err)
+			return nil, err
+		}
+		ev := &model.EventListRetrieved{
+			ID:          int(evDTO.ID),
+			Name:        evDTO.Name,
+			Description: evDTO.Description.String,
+		}
+
+		events = append(events, ev)
+	}
+
+	return events, nil
 }
 
 // UpdateInfo implements repo.EventRepository.
-func (e *eventRepository) UpdateInfo() {
-	panic("unimplemented")
+func (e *eventRepository) UpdateEventByID(
+	ctx context.Context,
+	event *model.EventUpdateEntity,
+) error {
+	queries := sqlc.New(e.db)
+	err := queries.UpdateEventByID(ctx, sqlc.UpdateEventByIDParams{
+		ID:          int32(event.ID),
+		Name:        event.Name,
+		Description: sql.NullString{String: event.Description, Valid: true},
+		UpdatedAt:   time.Now(),
+	})
+	return err
 }
diff --git a/internal/howmuch/model/event.go b/internal/howmuch/model/event.go
index dc31e75..dc11251 100644
--- a/internal/howmuch/model/event.go
+++ b/internal/howmuch/model/event.go
@@ -63,14 +63,6 @@ type EventInfoResponse struct {
 // }}}
 // {{{ Entity (DB In)
 
-type EventBaseItemEntity struct {
-	ID          int
-	Name        string
-	Description string
-	OwnerID     int
-	CreatedAt   time.Time
-}
-
 type EventEntity struct {
 	ID int
 
@@ -84,6 +76,14 @@ type EventEntity struct {
 	UpdatedAt time.Time
 }
 
+type EventUpdateEntity struct {
+	ID          int
+	Name        string
+	Description string
+	CreatedAt   time.Time
+	// TODO: maybe I can change owner too
+}
+
 // }}}
 // {{{ Retrieved (DB out)
 
@@ -103,6 +103,14 @@ type EventRetrieved struct {
 	UpdatedAt time.Time
 }
 
+type EventListRetrieved struct {
+	ID          int
+	Name        string
+	Description string
+	CreatedAt   time.Time
+	Owner       *UserBaseRetrieved
+}
+
 // }}}
 // {{{ DO Domain Object (Contains the domain service)
 
diff --git a/internal/howmuch/usecase/repo/event.go b/internal/howmuch/usecase/repo/event.go
index 3cbae11..a076de6 100644
--- a/internal/howmuch/usecase/repo/event.go
+++ b/internal/howmuch/usecase/repo/event.go
@@ -31,17 +31,13 @@ import (
 type EventRepository interface {
 	Create(ctx context.Context, evEntity *model.EventEntity) (*model.EventEntity, error)
 
-	// UpdateInfo updates the event related information (name, descriptions)
-	UpdateInfo()
-
-	Delete() // XXX: Pay attention to the foreign key relationships
+	// UpdateEventByID updates the event related information (name, descriptions)
+	UpdateEventByID(ctx context.Context, event *model.EventUpdateEntity) error
 
 	GetByID(ctx context.Context, eventID int) (*model.EventRetrieved, error)
 
-	ListExpensesByUserID()
-
 	// related to events of a user
-	ListEventsByUserID(ctx context.Context, userID int) ([]model.EventBaseItemEntity, error)
+	ListEventsByUserID(ctx context.Context, userID int) ([]*model.EventListRetrieved, error)
 }
 
 type ExpenseRepository interface {
@@ -49,6 +45,7 @@ type ExpenseRepository interface {
 	Update()
 	Delete() // Delete also the related transactions
 
+	ListExpensesByUserID()
 	GetByID()
 }